Borderou de evaluare (job #762315)

Compilare: main.cpp: In function 'int main()': main.cpp:67:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ob>::size_type' {aka 'unsigned int'} [-Wsign-compare] 67 | while (k < vec.size() and vec[k] < ob(i, j)) | ~~^~~~~~~~~~~~ main.cpp:70:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<ob>::size_type' {aka 'unsigned int'} [-Wsign-compare] 70 | while (k < vec.size() and vec[k].a == i and vec[k].b == j) | ~~^~~~~~~~~~~~ main.cpp:67:20: warning: 'k' may be used uninitialized [-Wmaybe-uninitialized] 67 | while (k < vec.size() and vec[k] < ob(i, j)) | ^ main.cpp:45:21: note: 'k' was declared here 45 | int n, m, i, j, k; | ^